Minimum Surface Casing Requirements

Minimum surface casing requirements for protecting fresh and usable water and to meet alternate #1 on Intent to Drill cards, Form C-1
S=Section, T=Township, R=Range

Sheridan County

In T.6S-R.29W and T.6S-R.30W protect through all unconsolidated material plus 50 feet into the underlying formation. In all other areas, protect through the Dakota formation plus 50 feet into the underlying formation. The following options are open:

(a) set through the Dakota plus 50 feet into the underlying formation or

(b) set through all unconsolidated material plus 50 feet into the underlying formation and cement the production string from a point 50 feet below the base of the Dakota to the surface.

If (b) is used and the hole is dry, refer to K.A.R. 82-3-114. In all cases, set through all unconsolidated material plus 50 feet into the underlying formation.